#
# 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
#
# 
# @param numbers int整型一维数组 
# @return bool布尔型
#
class Solution:
    def IsContinuous(self , numbers: List[int]) -> bool:
        # write code here
        hash = set()
        for i in numbers:
            if i in hash:
                return False
            hash.add(i)
            if i == 0:
                hash.discard(0)
        min_value,max_value = min(hash), max(hash)
        if max_value - min_value >= 5:
            return False
        else:
            return True